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| author | Congzhe Cao <congzhe.cao@huawei.com> | 2022-08-03 19:37:30 -0400 |
|---|---|---|
| committer | CongzheUalberta <congzhecao@gmail.com> | 2022-08-03 19:59:01 -0400 |
| commit | 8dc4b2edfad7f097f1628c9db8a6ab2264bb480d (patch) | |
| tree | 957e692c296067c8820083d8c73a4453209ffdd7 /llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 76be5549318a9e5aa3bdc2b3e0ae8ed5a16bfe59 (diff) | |
| download | llvm-8dc4b2edfad7f097f1628c9db8a6ab2264bb480d.zip llvm-8dc4b2edfad7f097f1628c9db8a6ab2264bb480d.tar.gz llvm-8dc4b2edfad7f097f1628c9db8a6ab2264bb480d.tar.bz2 | |
[LoopInterchange][PR56275] Fix legality with negative dependence vectors
This is the 2nd patch of the two-patch series (D130188, D130189) that
fix PR56275 (https://github.com/llvm/llvm-project/issues/56275) which
is a missed opportunity for loop interchange.
As follow-up on the dependence analysis (DA) patch D130188, this patch
normalizes DA results in loop interchange, such that negative dependence
vectors queried by loop interchange are reversed to be non-negative.
Now all tests in PR56275 can get interchanged. Those tests are added
in lit test as `pr56275.ll`.
Reviewed By: kawashima-fj, bmahjour, Meinersbur, #loopoptwg
Differential Revision: https://reviews.llvm.org/D130189
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
0 files changed, 0 insertions, 0 deletions